- HTLV-1
- Highest prevalence in Japan and the Caribbean
- Several associated skin conditions
- Infective dermatitis - head and neck dermatitis in children
- Adult T-cell leukemia/lymphoma
- Diagnostic criteria
- “eczema” of the scalp, armpits, inguinal folds, ears, nape of the neck, paranasal region
- Chronic watery nasal discharge
- Chronic recurrent pyoderma
- Onset during childhood
- HTLV-1 seropositivity